This led to a rise in slave revolts, especially in the 1860s and 1880s, which compelled the government to change the program to keep the region secure.[13] Slavery was lawfully abolished in 1888. Brana Itaipu, najveća svjetska hidroelektrana prema proizvodnji energije i druga najveća po instaliranom kapacitetu (fourteen 000 MW) https://ewandrealo.dgbloggers.com